Y(y + 4)(y - 6) = 0 is a quadratic equation. true false

FALSE

A quadratic equation would be a polynomial of degree two. That means the maximum power of the variable is two.

This one has y cubed, so is a cubic equation. As it's factored we can read off the three roots: y=0, y=-4, y=6.

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225